Weather-strip



P. R. OFTEDAL WEATHER STRIP May 17, 1938.

Filed Jan. 17, 1935 Patented May 17, 1938 lUNITED STATES PATENT OFFICE lwaaraans'ranl Philip E. Oitedal, Chicago, lll. Appncaao January 1r,193s, serial No. 2,115

, s claim. (ol., lss-c5) This invention relates to weather-strips forwindows or doors, and more particularly to weather-strips for metalwindows or doors which are opened or closed by means of hinged, pivotedor projected connections.

In weather-strips on the market today water and dirt accumulate in thesame when the window is open and also the sharp edges of the metalstrips have the inherent danger of causing cuts and bruises and for thisreason are undesirable.

It is, therefore, one object of my invention to make a tightweather-strip which will not permit air and water to accumulate therein.A second object is to eliminate the danger of sharp edges on metalweather-strips. These and other objects will be apparent from thedrawing, in which Figure l is a front view of a metal window frame inperspective employing my improved weather-strip; I

Figure 2 is a cross section of a weather-strip taken on lines 2-2 ofFigure l looking in the direction of the arrows;

Figure 3 is an enlarged cross sectional view of Figure 2;

Figure 4 is a cross section of the weather-strip taken on lines 4-4 ofFigure 1;

Figure 5 is a modied form of the improved weather-strip.

In thel various iigureslike characters are given to similar parts in thedrawing, in which I represents a metal window frame, 2 the weatherstripon the lower horizontal side of the frame, l the weather-strip on thevertical side adiacent to the hinged connection of the window, I the pinjoining the vertical weather-strip 3 and the horizontal strip 2, 5represents the vertical weather-strip remote from the hinged side of thewindow frame, 6A the pin connecting weatherstrip 5 and weather-strip 2.l represents the horizontal top weather-strip and the pin connectingsaid top weather-strip 'I and the vertical strip 5, 2 the pin connectingstrip 3 and strip l, III represents the locking bar, I I the taperingportion thereof, I2 the slot or opening in said bar vI to permit theinsertion of the weather-strip 5, Il represents the horizontal portionof the window frame immediately adjacent to the lower horizontalweather-strip 2, and Il the portion of the frame immediately adjacent tothe horizontal upper metal strip 1. I represents the window sash frame,I6 the flange at the bottom of said frame, I'I an L extending from aportion of the window frame I3, and I8 a vertical flange located on thesaid L Il, I9 is a downwardly projecting arm of the sash frame I5, acasing for holding the glass 2|. 22 is one end of vmy improvedweather-strip,\23 that portion where it is bent upon itself, 24 theupwardly projecting portion of said strip which is bent upon itself at25. extending thence downwardly, bent upon itself again at 28 andextending upwardly and again downwardly to form a U-shaped bend, againhaving the edge 21 bent upon itself and terminating at 28. 29 indicatesa further bend in the resilient member of the weather-strip.

l From the drawing, particularly Figure 2 thereof', it will' be obviousthat no water, dirt or accumulation of any kind is possible in theweatherstrip there shown in cross section. If the resilient member 2lextended upwardly rather than down- 15 wardly, it is clearly obviousthat water and dirt would thus accumulate.

'I'hemethod of constructing the weather-strip with all edges bent uponitself also eliminates and bruises in opening or closing the Window.

Aside from the new and improved features just mentioned, theweather-strip forms a very effective closure, wherein the flange I6presses against the downwardly projecting member 24 on the im. provedweather-strip and causes a tight contact, as shown in the dotted linesin Figure 3.

The particular construction designed primarily for the bottom horizontalpart of the window frame may be used on the vertical and top horizontalside, although the most important function of the particular form of thestrip shown in Figure 2 is obviously for the bottom side, since becauseof gravity neither water nor dirt will accumulate in the verticalweather-strips, Thus the particular form of the strip shown in Figures 2and 3 may be used on all four sides of the frame, although it may bepreferred to use the same only on the bottom horizontal and verticalsides nearest the hinged side, 40

using either the form of strip shown in Figure 4 or Figure 5 on thetophorizontal and vertical sides remote from the hinged connection. Itwill be readily understood that the form of weatherstripused on thebottom horizontal side as shown in Figures 2 and 3 is essential and thatthe particular form of the strips used in any of the other three sidesis optional.

v The lock bar I0 is made integrally with the window frame I, having atapered end II for tight 5 0 frictional contact with the handle of thesash frame and said lock bar I 0 having a groove I2 for permitting theweather-strip 5 to be inserted therein and thus serves to reenforce theweatherstrip on the window frame.

or upper horizontal 35 It will be obvious that as the window is closedand the handle shown in Figure 1 is drawn tight by frictional contactpassing over the tapered end Il on the lock bar I0, that the ilange i8of the window sash will press against the weather-strip on all foursides and thus by tight frictional contact prevent any air from comingin the window while it is closed.

Having thus described my invention what I claim as new and desire toclaim by Letters Patent is:

l. A weather strip comprising two nested U- shaped members formed o! asingle piece o! resilient metal bent upon itself, the inner U-shapedportion of said nested U-shaped member adapted to engage a part of thewindow on which the weather strip ls to be mounted, the outer U- shapedportion having one side thereof extending outwardly from the adjacentside of the inner U-shaped portion for frictional contact with a windowsash or frame.

2. A weatherstrip of the character described comprising a single stripof relatively thin resilient metal bent to form two nested U-shapedmembers, joined at one side of the U, the inner U-shaped member beingadapted to be placed in embracing relation to one narrow element of ametal window frame and sash assembly with said one side of the U remotefrom the other element of said assembly, and with the other side of saidinner U-shaped member and the corresponding side of the outer U-shapedmemberv located between the elements of said assembly, said other sideof said inner U-shaped member having its edge reversely bent inwardly ofthe U, said corresponding side of the outer U-shaped member being formednormally to diverge from the inner U for compression by the otherelement of said assembly, and said corresponding side of the outerU-shaped member being substantially longer than the adjacent side of theinner U-shaped member and having its edge reversely bent toward theinner U-shaped member and being oi' such a length that said reverselybent edge of the outer U-shaped member clears said inner U- shapedmember when said corresponding side of the outer U-shaped member iscompressed between the elements of said assembly.

3. In combination with a metal window assembly having a frame elementand a swingably related sash element, weatherstripping mounted aroundthe edges of one of said elements, said one of said elements having anarrow projecting edge flange located in a plane parallel to the planeof the other element when the sash is in closed position, saidweatherstripping along two adjacent intersecting edges of said oneelement each comprising a strip of thin resilient metal bent to providea pair oi' nested U-shaped members joined along one side at the open endof the U, the inner one of which members constitutes a mounting memberadapted to embrace said projecting edge flange with the joined sides ofsaid members on the face of said ilange remote from the other element ofsaid assembly, and the outer U-shaped member constituting a sealingmember and being formed to diverge from the other face of said flangefor compression between .said elements of said assembly, the joinedsides of the U-shaped members of the weatherstripping along one of saidintersecting edges overlapping the joined sides of the U-shaped membersof the weatherstripping along the other intersecting edge, saidoverlapping being at the juncture of said edges, and means connectingsaid overlapping portions of the weatherstripping.

PHILIP R. OFI'EDAL.

